Cup



y 2, 1939- SIDON 2,156,574

' CUP 7 Filed Sept. 25, 1936 INVENTOR. [ya i J'tdo A oRNEYs'.

Patented May 2, 1939 UNITED STATES CUP Max Sidon, Fulton, N. Y., assignor to oswego Falls Corporation, Fulton, N. Y., a corporation oi. New York Application September 25, 1936', Serlal No. 102,549

1 Claim.

This in'vention relates in general to receptacles shaped in the manner of a cup, and being usually formed of fibrous material, such as paper.

More particularly, the invention relates to a novel structure of the upper portion of the side wall of the cup, whereby a disk closure may be conveniently inserted in the open end of the cup and subsequently manipulated into-interlocked relationship with the cup.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawing in which like char- 15 acters designate correspondingpartsin all the views.

Figure 1 is a perspective view, partly in section, of a cup illustrating rny invention.

Figure 2 is an enlarged, cross-sectional view of the upper portion of the cup shown in Figure 1. 1 The invention consists generally ofa cup having a side wall formed at its open end with a cylindrical closure guide and an internal bead at the base of the guide to preliminarily receive the closure and position it at substantially right- 25 angles to the axis of the cup. The side wall is also provided with an internal groove arranged immediately below said head to receive the periphcry of the closure when the same is pressed downwardly over the bead and to hold the closure in interlocked relationship to the sidewall.

- The cup disclosed in the drawings is of conventional circular contour, and is formed with a body l flaring outwardly from the bottom .to-

ward the top of the cup and terminating adjacent 35 the top of the cup. The-topmost portion or open end of the cup is'fo'rmed cylindrical and ter--- minates in an outwardlyflaring roll or bead II. The body I 0 is provided with a suitable bottom closure, not shown. l Usually cups of this type formed oi paper, and like materials, are formed with a tapering body inorder to permit the cups to be nested one within the other to reduce the bulk' during shipment and sale of the cups.- When it is desired to use a disk closure with these cups, the tapering side wall is provided with aninternal groove-to receive the perlpheryof'the closure disk. However, considerable diliiculty is encountered in placing the disk closure in the,top of the cup. These closures 50 are usuallytormed of thin material, and due to the circular contour of the cup and the closure,

I the closure has a tendency totllt, relative to the permit it tobe dropped against the head it. The

(Cl. 229-55) I axis of the cup, when it is pressed into the open end of the cup. Due to the fact that the tapered side wall is carried to the top edge of the cup, the portion above the bead does notaidin accurately uiding the disk into the groove. 4 I 5 In the structure shown, the top portion l2 of the side wall 13 is formed cylindrical or parallel with the axis of the cup, and the side wall is formed with an internal bead I i at the base of the cylindrical portion i2. I a

The side Wallis further provided with an internal groove l'l located immediately below the head It. The purpose of this groove is to receive the periphery of the closure disk l5 and interlock the same-with the side wall. The closure disk I5 is 15 of slightly greater diameter than the groove i1 and is accordingly of appreciably greater diameter than the bead it. However, the cylindrical .closure guide portion l2 is-of suflicient internal diameter to readily receive the closure I 5 and bead Hi serves two purposes. First, it acts as a ledge to receive the closure disk l5 and to position it at right-angles to the axis of the cup, as

' indicated in dotted lines at l6, Figure 2. It also assists in holding the closure with the periphery thereof in the groove i'i.

It is to be understood that the closure I5 is formed of fibrous material such as paper board and accordingly, when pressed in the center becomes slightly dished and accordingly, the periphery of the closure is contracted slightly permitting the closure to be pressed over the bead l4, and when released from pressure returns to its normal condition, with the result that the periphery of the closure is securely interlocked in the groove II. The closure acts in the same man- 7 ner'during its removal from the cup.

WhatIclaim'isz- I s The combination of a cup and a closure disk for the open end thereof, said cup comprising a 40 body portion providedwith a suitable bottom closure, the open end of the body being formed cylindrical and extending parallel to the axis of the cup, an internal bead arranged at the base of said cylindrical portion'to preliminarily receive the closure disk, said cylindrical portion acting as aguide to direct the closure disk in right-angular relation to the axis of the cup to said bead, aninternal groove arranged immediately below said 

